/Engine/Source/Runtime/Engine/Classes/GameFramework/Character.h
Play Animation Montage on the character mesh. Returns the length of the animation montage in seconds, or 0.f if failed to play.
virtual float PlayAnimMontage ( class [UAnimMontage](API\Runtime\Engine\Animation\UAnimMontage) * AnimMontage, float InPlayRate, [FName](API\Runtime\Core\UObject\FName) StartSectionName )